Відео

that's why its a prototype its not finished, its just for fitment reasons as stated in the video

@@AlphaDLimafirst of all that’s not what Nate said at all. He said that the production box would be made of carbon fiber but the performance would be the same. In order for the performance to be the same then the filter itself would have to be the same.

@@davidleonard8369 0:15 He legit says it’s a prototype and they sent it over for fitment testing lmao

@@davidleonard8369and the material doesn’t need to be the same at all to have the same exact performance, the k&n filter has different material than the stock intake on an mt07 and I asked him personally if that would make a difference and he says not at all.

@ duh! He also said that the only thing different from the production model is the material the box will be made from. Yes he said that it was sent to him to test fitment but he also said that performance would be the same as the production model. Maybe you don’t understand how airflow affects performance but in essence Nate meant that the actual filter media and its dimensions would be the same because if the production model is made Any different then the performance would be different making these tests virtually useless.

How do you like the exhaust? I'm stuck between the 200mm and 230mm options 😅

@@proxyhx2075 It's nice! has a good sound and is still pretty loud with the baffle in.

You're right, that is weird

It's essentially just "static" in the winpep7 data stream. If we further increase the smoothing of the graph, it disappears, but then you also lose resolution. In this case, it's nothing.

It's essentially just "static" in the winpep7 data stream. If we further increase the smoothing of the graph, it disappears, but then you also lose resolution. In this case, it's nothing.

Im sending mine next week!

Carbonsmith does that(3D printed v-stacks with MWR filter).

Pod filters? It's been tried and proven that intake flow efficiency is significantly better with an enclosed frequency chamber where the soundwave pulse traveling back and forth from the intake valve to the airbox has something to pressurize against, and the pulse frequency timing can be tuned for a specific RPM range where you intend to maximize flow efficiency through the throttlebodies. The principle is exactly the same as an exhaust system. For example, think of a two-stroke engine, where the expansion chamber location in the exhaust system has an effect in timing relative to engine RPM to affect cylinder gas flow. Without the chamber, there's no inversion-pulse return. An airbox is similar.

​@@exothermal.sprocketbingo.

@@exothermal.sprocket That pulse is not the speed of sound in the intake, it is a pressure wave(pulse) caused by the air to piling behind the intake valve when it closes ( intake velocity 350mph or higher to 0 mph ) causing the pressure to spike up through the intake runner back into the airbox causing the air pressure to rise just in time for the next intake opening in different cylinder. Exhaust measurement is sound (MACH 1). The intake and exhaust pulse wave forms are totally different. Think: spike(exhaust pulse mach1 ) vs ocean wave(intake: is dynamic everything changes with engine speed, amplitude changes with frequency). with 540 degrees between firings volume is your friend and intake signal is negligible. PITOT tube time ? PS: ProStock 500 CID 2 valve 10,000 rpm is about 450 mph intake runner speed. Exhaust: MACH 1 is also a choke, pushing faster destroys engines.

@ I'm aware in exhaust systems there are separate waves. I know intake systems operate on similar principles, hence airbox and length-tuned velocity stacks and so forth. There's a lot of optimization that can be done to a naturally aspirated system before you'd turn to forced induction for additional power. Honestly I wish variable valve timing was becoming more common in motorcycle engines than it currently is.

Hordpower is still making them, I just bought one. He does purchases by email.

I'm not sure where that myth start, but it isn't true at all. He still sells hundreds of them every year. You just have to email him directly to get one. He pulled them from his site years ago because demand far exceeded his manufacturing capability. He never stopped making them and/or selling them.

We're well aware of why they designed it that way. That doesn't mean it was a good idea for performance (which is all we care about).

@ Nate , I am curious about the effect of an gytr air box on tenere 700. Did you test it already?

Simply email him directly. All the info is on his site, Hordpower.com He pulled them from his site years ago because demand is far greater than his manufacturing capabilities. He still sells hundreds of them every year.

His contact info is on his site. Hordpower.com

@@2wheeldynoworks Thank you!

Yes, we covered it on an R7 in a video when it came out a couple of years ago. It still didn't perform as well as a Hordpower intake does, and the filter materials' maintenance interval is shockingly short. If you aren't cleaning/oiling that foam every 8 hours of operation, you're sucking in dirt and other fine particulates.

When you get into engine internals, no remote or mail-in tuning service will be accurate. That introduces variables that 99.99% of motorcycle owners cannot account for or control appropriately, such as properly timing the cams with the slotted sprockets. We have tuned countless CP2s over the years with varying levels of internal engine modifications on our dyno.

I'm sure they do. I put some delkevic headers on my z900. The fitment isn't as precise as the top brands but they do make good power and have quality materials.

Of course. We have custom mapping built for every intake/exhaust combination imaginable for the older bikes, and we will be going through that same extensive R&D process on the new 25+ models.

Most premium exhausts use titanium not just stainless steel, and the cost of raw materials is a lot higher than you think. Cheap exhausts may fit, but thats about it. A good exhaust brand actually does engineering to improve the performance. Also good-luck with customer service if something breaks on one of those shitty exhausts… you do you tho!

@ "if something breaks." It's an exhaust, it's not a Macbook. Nothing is going to break on your headers. Titanium vs steel, great, you're going to save a couple of cheeseburgers. Engineering? OK sure, you'll get something slightly more efficient that makes slightly more power, maybe. Delkevic can see what the Akra looks like and bend the same diameter pipes in the same places. It's still going to be way better than the stock system. $1200 vs $400 for 2 pounds and 1 horsepower...you throw that money down if it makes you feel better.

@@TheOriginalJadolph That's not true even the cheapest aftermarket exhaust will gain power if it fits properly. They don't need a lot of engineering to figure out that a little bigger diameter pipe, better collector and the cat removed will gain a good amount of power. I've used everything from aliexpress to akrapovic, Arrow, titanium, stainless, carbon ect. The most expensive options are really good and well made but the performance gain isn't anything more than the cheap exhaust can produce and if it does make slightly more power you can't feel it. On Harley motors the exhaust makes a big difference because it's all low end power.